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A robust high-efficiency cross-coupled charge pump circuit without blocking transistors

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Abstract

A fully integrated cross-coupled charge pump circuit with a new clock scheme has been presented in this paper. The new clock scheme ensures that all NMOS pre-charge transistors are turned off when the voltages of main clock signals are high. Notably, all PMOS transfer transistors will be turned off when the voltages of the main clock signals are low. As a result, the charge pump eliminates all of the reversion power loss and reduces the ripple voltage. The proposed charge pump has a better performance even in scenarios where the main clock signals are mismatched. The proposed charge pump circuit was simulated using spectre in the TSMC 0.18 µm CMOS process. The simulation results show that the proposed charge pump circuit has a high voltage conversion efficiency and low ripple voltage.

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Authors and Affiliations

  1. Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education, Xiangtan University, Xiangtan, 411105, Hunan, China

    Minglin Ma & Xinglong Cai

  2. School of Engineering and Technology, University of Hertfordshire, Hatfield, AL10 9AB, UK

    Minglin Ma, Yichuang Sun & Nike George

Authors
  1. Minglin Ma
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  2. Xinglong Cai
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  3. Yichuang Sun
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  4. Nike George
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Correspondence to Minglin Ma.

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Ma, M., Cai, X., Sun, Y. et al. A robust high-efficiency cross-coupled charge pump circuit without blocking transistors. Analog Integr Circ Sig Process 95, 395–401 (2018). https://doi.org/10.1007/s10470-018-1149-x

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  • DOI: https://doi.org/10.1007/s10470-018-1149-x

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